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题型:阅读理解-七选五 难度:0.65 引用次数:93 题号:17161521

Fat is an important part of all living things and most body fat in animals and people is white. White fat allows people to eat more than they need when food is enough. It stores those extra calories until food becomes short.     1    

Hibernation(冬眠) can help animals get through the cold winter. They feed themselves on much food in fall in preparation for a long and cold winter. Animals don’t eat when they are hibernating.     2     To spend an entire winter, these animals enter a state called torpor(不活泼), where they use the white fat more slowly than they usually do.

When in torpor, it seems that animals have been sleeping. But torpor goes much deeper than that. In fact, animals’ activities slow down in torpor.     3     An animal may take several breaths and then stop breathing for several minutes. Instead of wasting energy to keep warm, bodies in torpor can remain just above freezing.     4     Every week or two, they will wake up. They stay awake for a day or so before going back into torpor. The time is different in different species. What causes the wake-up or why it happens is unclear. However, all true hibernating animals go through this cycle.

In order to wake up during the hibernation, these animals have to warm their bodies.     5     This process burns up white fat. And not only on hibernating animals, the warming process has the same influence also on humans, Ballinger explains.

A.But hibernating animals don’t stay asleep all winter long.
B.If so, they will suffer from hunger during the winter.
C.Their heart may beat only a few times each minute.
D.Instead, they burn their white fat to keep their bodies running.
E.They might feel comfortable when they wake up after a long winter.
F.Then the body burns it for energy to stay alive until more food shows up.
G.That   means going from a temperature above freezing to their usual body temperature.
【知识点】 动物

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【推荐1】My work started in 2003 at my local animal shelter’s Adoption Department. It seems like such a long time ago. In the 13 years that have passed, more than 50,000 animals have passed the doors of the shelter. Most of them, I do not remember. But occasionally there are animals who stand out. Tabby was one such animal.

Tabby was one of the many homeless dogs. What’s more, she was blind and deaf. Tabby’s chances at adoption seemed remote at best. But one day a woman named Loretta came to the shelter. Her son, Gary, who suffered from epilepsy (癫痫) had seen Tabby’s picture on the shelter’s website. They were interested in meeting her! Most boys would want a puppy, a dog who could grow with him and run through grassy fields on summer days. Tabby would never be able to do that. But as they say, "love is blind". After meeting her, they decided to adopt Tabby!

If Tabby’s story had simply ended with her successful adoption, it would still have been something very special indeed but it was what happened after her adoption that some might label as "magical" or perhaps even miraculous. As Gary and Tabby did everything together, they became so "in tune" with one another that Tabby began to telegraph Gary’s seizures (疾病发作) before they occurred, giving his family a warning that one was about to strike. What’s more, Gary seemed to be having fewer and fewer seizures since Tabby’s arrival.

How could it be? There are some things that happen in this world that challenge all logic and understanding. Sometimes, the best that we can do is to accept a miraculous thing, which we didn’t attempt to explain. Because when you try to explain it, you lose the beauty and wonder of it all.

1. Which sentence can be used to describe Tabby?
A.She was so lovely that she could be easily adopted.
B.She suffered a lot from the disease-epilepsy.
C.She was so strong that she could run very fast.
D.She was homeless and couldn’t see or hear.
2. What does the underlined word "miraculous" in Paragraph 3 probably mean?
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A.Gary learnt about Tabby from a magazine.
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4. What can be a suitable title for the text?
A.Love is Blind: a Miraculous DogB.Give Me Food: My Dear Master
C.Love is Everywhere: a Poor DogD.Take Me Home: My Dear Boy
2021-05-11更新 | 147次组卷
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【推荐2】Capybaras (水豚) are group animals, so they do not like being alone. In fact, leaving a capybara alone is not only uncomfortable for the animal, but it can be harmful to their physical health, as well as their mental happiness. Capybaras love to talk to each other throughout the day. Groups of capybaras spend their days sun bathing along the edge of rivers, where they enjoy swimming together in the water. They spend half of their lives in the water.

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1. What does the first paragraph mainly tell us about capybaras?
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C.The caracara may just take a short break.
D.The capybara may be providing its cleaning service.
4. What may probably be covered in the following paragraph?
A.Calls for protection.B.Habits of caracaras.
C.Benefits of extinction.D.Threats from capybaras.
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Pandas do protect a lot although a few species fall outside the umbrella. The research found about one hundred kinds of animals are not protected by the giant panda’s current reservation. The paper identified 10 locations that might be suitable for new or improved nature reserves to help expand that coverage. Many of these areas, located in Sichuan Province, which is considered the stronghold (大本营) of giant pandas in the wild, are close to existing reserves.

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“The new findings are important,” Pimm (the other author) and Li say, “because many people doubt whether China’s commitment to preserving giant panda habitats is doing much good.” Other people around the world don’t even realize that wild pandas still live in their native forests. “A lot of the resources in China go to releasing captive (被关住的) pandas back into the wild,” Li says. “The news doesn’t cover that.” She says this paper helps display wild pandas and also shows that the expense in preserving them is money well spent.

The researchers hope their paper helps to set the tone for future discussions not only about umbrella species but also giant pandas themselves, along with all China’s wildlife.

1. Giant pandas are called an umbrella species because ________.
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B.they help take care of other baby animals
C.their precious value requires better protection
D.the protection for them also extends to other species
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B.The coverage of nature reserves may be expanded.
C.The giant panda lives in important local conservation areas.
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B.Researchers have done a lot to protect China’s local species.
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D.Conservationists expressed a new umbrella species theory.
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